body,h1,h2,h3,h4,h5,h6,ul,p{
    margin: 0;
    padding: 0;
}
ul{
   list-style: none;
}
img{
   vertical-align: middle;
}
h1,h2,h3,h4,h5,h6,strong{
   font-weight: normal;
}
body{
   font: 1em / 1.8 'microsoft Yahei', sans-serif;
   color: #333;
   --themecolor:#ff8c1b;
   background-color: #eee;
}
.clearfix::after{
   content: '';
   display: block;
   clear: both;
}
a{
   text-decoration: none;
   color: #333;
}
input,button{
   outline: none;
}